CX8835, duty cycle 100%, 5V in and 5V out, PD multi use A port application preferred solution, factory provides CX8835 sample application, CX8835 solution and technical support!

Belkin's dual USB-A fast charging car charger features a sleek overall design with LED indicator lights. Both A ports support 5V2.4A output, with a total output of 24W. It can charge two devices simultaneously and is very convenient to use with blind insertion. Next, we will disassemble the Belkin car charger and take a look at its stability and internal design craftsmanship.

Belkin car charging finished product diagram

Parameters:

• Product model: CCB001

• Input: 12-24V/2.5A

• USB1/2 output: 5V2.4A

• The product has passed FCC, CE, CP, EAC, and KC certifications

The intuitive feeling of holding the car charger in your hand:

CX8835 typical solution application, Belkin dual A port 24W car charging and dismantling

Turn on the power and the indicator light will light up in a light blue color.

Using ChargerLAB POWER-Z KT002, it was found that the USB-A port supports Apple 2.4A protocol.

The other A port only supports Apple 2.4A protocol

This car charger adopts two independent buck output designs, with both A port buck converters using CX8835. This is a buck DC-DC converter with an input withstand voltage of up to 40V and can achieve precise constant voltage and current. It is equipped with an 80m Ω High side PMOS and a 20m Ω Low side NMOS, which can support 3A continuous output current, adjustable output voltage, and can support up to 100% duty cycle.

In addition, the CX8835 has high-performance load response and input voltage response capabilities, while precise constant voltage and constant current control loops achieve minimal load adjustment and linear adjustment rates; Without external compensation, it can rely on its built-in stable loop to achieve constant current and constant voltage control, while also having cable voltage drop compensation function; This is a constant voltage and constant current buck converter with minimal application, excellent performance, and stable reliability.

The other buck converter also uses the CX8835

Belkin's car charger is equipped with two independent DC-DC voltage reduction output circuits, each of which uses CX8835 material for voltage reduction conversion ICs. This is a stable and reliable constant voltage and constant current voltage reduction converter with minimal application, excellent performance, and is equipped with inductor bonding reinforcement and covered with heat shrink tubes for protection. The car charger output filter uses solid-state capacitors, with multiple internal bonding reinforcement. The positive electrode is directly connected with copper wire to reduce resistance, and the workmanship is very exquisite.